Official NHA Assessment

Race 6: www.tabgold.co.za MR 98 HANDICAP (Open)

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Line Horse
Except Temptation
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
7 / 8
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Donquerari           5    57.0    1    0.00     0.0   100   96           100   +0
2    Good Traveller       6    57.5    2    0.05     0.0   96    97           97    +1
3    Except Temptation    2    57.0    3    1.75     1.0   94    94           94    +0
4    William Rufus        2    56.0    4    2.95     1.0   90    92           92    +2
5    The Real Prince      3    56.5    5    3.55     2.0   93    91           91    -2
6    Ibutho               7    56.0    6    3.70     0.0   90    94           94    +4
7    Music Is Life        2    54.0    7    6.00     1.0   86    88           88    +2
99   Usa's Hope           2    55.0    99   0.00     1.0   -     90           90    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Donquerari 100 86 100 -14 0.0 -
2 Good Traveller 96 108 97 +11 0.0 -
3 Except Temptation Line 94 84 94 -10 1.0
4 William Rufus 90 88 92 -4 1.0 -
5 The Real Prince 93 128 91 +37 2.0 -
6 Ibutho 90 83 94 -11 0.0 -
7 Music Is Life 86 71 88 -17 1.0 -
99 Usa's Hope - 97 90 +7 1.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points